ORISKANY    AND    CLINTON    IRON    ORES    OF    VIRGINIA.  187 
Analysis  of  ore  from  Dolly  Ann  property,  near  Covington,  Va. 
Silica  (SiOa) 33. 26 
Alumina  (AI2O3) 5. 26 
Iron  oxide  (Fe203) 52. 86 
Manganese  oxide  (MnO ) 61 
Lime  (CaO) 28 
Sulphur  (S) 014 
Phosphorus  anhydride  (PsOr.) 1.312 
Carbon  dioxide  (CO2) 21 
Water  (HjO) 1. 90 
LIST   OF   REFERENCES    ON    THE    ORISKANY    ORES    OF    VIRGINIA. 
Campbell,  J .  L.  The  mineral  resources  and  advantages  of  the  country  adjacent  to  the  James  River 
nd  Kanawha  Canal  and  the  Buchanan  and  Clifton  Forge  Railway.    The  Virginias,  vol.  1,  pp.  2-8. 
feo. 
The  geological  features  of  the  Arcadia  iron  property.    The  Virginias,  vol.  1,  pp.  104-105. 
^80. 
■  The  geology,  etc.,  of  the  Rich  Patch,  Va.,  iron  region.    The  Virginias,  vol.  1,  pp.  185,  188-189, 
92-193.  1880. 
The  Purgatory  iron  property,  Botetourt  County,  Va.    The  Virginias,  vol.  1,  pp.  156-158 
880. 
The  resources  of  Brocks  Gap,  Virginia.    The  Virginias,  vol.  1,  pp.  140-141.    1880. 
Rich  Patch  iron  region.    The  Virginias,  vol.  2,  p.  7.    1880. 
Report  on  the  mineral  prospects  of  the  St.  Mary  iron  property.    The  Virginias,  vol.  4  pp. 
9-20.     1883. 
Chance,  H.  M.  The  Rich  Patch  iron  tract,  Virginia.  Trans.  Am.  Inst.  Min.  Eng.,  vol.  29,  pp.  210-223. 
[900. 
Darton,  N.  II.    Staunton  folio,  Virginia-West  Virginia.     Geologic  Atlas  U.  S.,  folio  14.    1894. 
Monterey  folio,  Virginia-West  Virginia.     Geologic  Atlas  U.  S.,  folio  61.    1899. 
Firmstone,  H.  Note  on  a  deposit  of  cadmia  in  a  coke  furnace.  Trans.  Am.  Inst.  Min.  Eng.,  vol.  7, 
3p.  93-96.      1879. 
Hungerford,  W.  S.  Mining  in  soft  ore  bodies  at  Low  Moor.  Trans.  Am.  Inst.  Min.  Eng.,  vol.  17, 
pp.  103-107.     1889. 
Johnson,  G.  R.  Methods  of  working  and  surveying  the  mines  of  the  Longdale  Iron  Company, 
Virginia.    Trans.  Am.  Inst.  Min.  Eng.,  vol.  20,  p.  96.    1892. 
Ore  washer  at  Longdale,  Va.    Trans.  Am.  Inst.  Min.  Eng.,  vol.  24,  pp.  34-40.    1895. 
Johnson,  J.  E.,  jr.  Origin  of  the  Oriskany  limonites  (Va.).  Eng.  and  Min.  Jour.,  vol.  7(5,  pp. 231-232. 
Aug.  15,  1903. 
Lyman,  B.  S.  Geology  of  the  Low  Moor,  Va.,  iron  ores.  Trans.  Am.  Inst.  Min.  Eng.,  vol.  14,  pp. 
801-809.     1886. 
Means,  E.  C.  The  flue  dust  of  the  furnaces  at  Low  Moor,  Va.  Trans.  Am.  Inst.  Min.  Eng.,  vol.17, 
pp.  129-131.    1889. 
Pechin,  E.  C.  The  iron  ores  of  Virginia  and  their  development.  Trans.  Am.  Inst.  Min.  Eng., 
vol.  19,  p.  1016.     1891. 
Virginia  Oriskany  iron  ores.     Eng.  and  Min.  Jour.,  vol.  54,  p.  150.     1892. 
Report  on  the  property  of  the  Rich  Patch  Iron  Company.     12°.    13  pp.    Staunton,  Va.,  1892 
The  Oriskany  ores  at  Rich  Patch  mines,  Virginia.    Eng.  and  Min.  Jour.,  vol.  61,  pp.  113, 134, 
159-160.    1896. 
Taylor,  W.  W.    A  blast-furnace  problem  with  zinc.    Eng.  and  Min.  Jour.,  vol.  67,  p.  469.    1899. 
THE   CLINTON,   RED,   OR    FOSSIL  ORES. 
•  The  Clinton  ores  of  Virginia  are  not  particularly  well  developed,  as  regards  either  quality 
or  thickness,  and  so  far  have  attracted  little  attention.  But  the  gradual  exhaustion  of 
the  supply  of  good  brown  ores  is  operating  to  create  interest  in  the  Clinton  ores  at  present. 
The  Clinton  ores  have  recently  been  opened  by  the  Lowmoor  Iron  Company  along 
the  southeastern  face  of  Horse  Mountain,  about  3  miles  southwest  of  Lowmoor  station. 
The  ores  here  outcrop  near  the  crest  of  the  ridge  and  dip  about  10°  into  it.  When  visited 
by  the  writer  in  June,  1905,  several  slopes  had  been  run  in,  the  workings  having  progressed 
for  100  to  130  feet  in  each  slope.  Sections  of  the  ore  and  associated  rocks  were  carefully 
measured  at  the  entries  of  two  of  these  slopes,  with  the  following  results: 
